85 – 17x = 34; 23(15 – y) = 92; (a + 45) : 11 = 12; 144 : (71 – b) = 9.. Created by bastun2010. matematika-ru

85 – 17x = 34; 23(15 – y) = 92; (a + 45) : 11 = 12; 144 : (71

bastun2010 @bastun2010

July 2022 1 11 Report

85 – 17x = 34; 23(15 – y) = 92; (a + 45) : 11 = 12; 144 : (71 – b) = 9.

Answers & Comments

ksen4eg

Ответ:а)

85-17х=34

-17х=34-85

-17х=-51

х=3

б)

23(15-у)=92

15-у=4

-у=4-15

-у=-11

у=1

с)

(а+45):11=12

а+45=132

а=132-45

а=87

д)

144:(71-b)=9

144:(71-b)=9 b≠71

144=9(71-b)

16=71-b

b=71-16

b=55, b≠71

b=55

Пошаговое объяснение:хз

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